武汉工程大学学报2011，Vol.33Issue(11)：70-73,4.DOI:10.3969/j.issn.1674-2869.2011.11.018
圆柱壳内曲面椭圆裂纹应力强度因子数值计算
Numerical calculation for stress intensity factor of curved surface elliptical crack buried in cylindrical shell
何家胜 1谢飞 1来晓明 2陈伟 2路远明2
作者信息
- 1. 武汉工程大学机电工程学院,湖北 武汉 430074
- 2. 中国石化股份有限公司武汉分公司,湖北 武汉 430082
- 折叠
摘要
Abstract
A finite element model of fracture mechanics was established to calculate the stress intensity factor (SIF) of curved surface elliptical crack buried in cylindrical shell by using the method of 1/4-displacement of the finite element setting 3D singular elements along the front edge of crack;the SIF of the points in the front edge of crack was analyzed, the variation curve of SIF was obtained and the location of the maximum SIF was discovered which provides an important basis for security assessment of the layered chemical equipments caused by hydrogen corrosion.关键词
氢腐蚀/÷节点奇异单元/曲面椭圆裂纹/应力强度因子/有限元法Key words
hydrogen corrosion/1/4-displacement of finite element/curved surface elliptical crack/stress intensity factor/finite element method分类
化学化工引用本文复制引用
何家胜,谢飞,来晓明,陈伟,路远明..圆柱壳内曲面椭圆裂纹应力强度因子数值计算[J].武汉工程大学学报,2011,33(11):70-73,4.
